D-Net

import {Injectable} from '@angular/core';

import {Http, Response} from '@angular/http';

import {HttpClient, HttpErrorResponse} from "@angular/common/http";

import {Observable, throwError} from 'rxjs';

import {CustomOptions} from './servicesUtils/customOptions.class';

import {catchError} from "rxjs/operators";

@Injectable()

export class LayoutService {

    constructor(private http: HttpClient) {

    }

    static removeNulls(obj) {

        const isArray = obj instanceof Array;

        for (let k in obj) {

            if (obj[k] === null || obj[k] === '') {

                isArray ? obj.splice(k, 1) : delete obj[k];

            } else if (typeof obj[k] === 'object') {

                LayoutService.removeNulls(obj[k]);

            }

        }

    }

    saveLayout(pid: string, url: string, layout: any) {

        LayoutService.removeNulls(layout);

        return this.http.post(url + 'community/' + pid + '/updateLayout', JSON.stringify(layout), CustomOptions.getAuthOptionsWithBody())

            //.map(res => res.json())

            .pipe(catchError(this.handleError));

    }

    getLayout(pid: string, url: string) {

        return this.http.get(url + 'community/' + pid + '/layout')

            //.map(res => res.json())

            .pipe(catchError(this.handleError));

    }

    loadDefaultLayout(pid: string, url: string) {

        return this.http.post(url + 'community/' + pid + '/resetLayout', null, CustomOptions.getAuthOptionsWithBody())

            //.map(res => res.json())

            .pipe(catchError(this.handleError));

    }

    private handleError(error: HttpErrorResponse) {

        // in a real world app, we may send the error to some remote logging infrastructure

        // instead of just logging it to the console

        console.error(error);

        return throwError(error.error || 'Server error');

    }

}